/*
 * Copyright 2009 Kaspar Minosiants http://www.minosiants.com.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.minosiants.confluence.blog.plugin.tweet2it.aop;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

import com.atlassian.spring.container.ContainerManager;
import com.minosiants.confluence.blog.plugin.tweet2it.ApplicationException;
import com.minosiants.confluence.blog.plugin.tweet2it.IContextUtil;
/**
 *	Project home: http://tweet2it.minosiants.com
 *
 *  @author Kaspar Minosiants
 *
 * 	$Id:$
 */
@Aspect
public class CheckPermissionAdvice {
	private Log logger = LogFactory.getLog(getClass());
	private IContextUtil contextUtil;	
    @Before( "@annotation(com.minosiants.confluence.blog.plugin.twitter.aop.CheckPermission)" )
	public void checkUserPermission(JoinPoint jp){
    	logger.info("checkUserPermission");
    	if(!getContextUtil().isReadOnly())
    		return;
    	throw new ApplicationException("operation is not allowed");
	}
	public IContextUtil getContextUtil() {				
		if(contextUtil==null){
			ContainerManager.autowireComponent(this);
		}
		return contextUtil;
	}
	public void setContextUtil(IContextUtil contextUtil) {
		this.contextUtil = contextUtil;
	}
    
}
